Gear selection actuator for a shift-by-wire mechanism
AssigneeGHSP, Inc.
InventorsJack Zhao, Shavin Zhang, Gary Chen, Zhengwei Ye
Life of this patent
Estimating the term…
Abstract
A shift actuator for a transmission includes a drive assembly coupled with a selector interface. A transmission selector operates between a plurality of transmission settings. A threaded actuator is rotationally operated by the drive assembly. A carriage linearly operates along the threaded actuator to define a plurality of actuator positions that correspond to the transmission settings. An actuator arm extends between the carriage and the transmission selector to translate linear operation of the carriage to rotational operation of the transmission selector.
Claims20
A shift actuator for a transmission, the shift actuator comprising:
- a drive assembly coupled with a selector interface;
- a transmission selector that operates between a plurality of transmission settings;
- a threaded actuator rotationally operated by the drive assembly;
- a carriage that linearly operates along the threaded actuator to define a plurality of actuator positions that correspond to the plurality of transmission settings;
- and
- an actuator arm that extends between the carriage and the transmission selector to translate linear operation of the carriage to rotational operation of the transmission selector, wherein the actuator arm includes a positioning magnet that operates relative to a position sensor in communication with the drive assembly, wherein the positioning magnet and the position sensor cooperate to selectively operate a motor of the drive assembly between the plurality of transmission settings.
A gear selector assembly comprising:
- a selector interface that selectively operates a drive assembly having a threaded actuator;
- a carriage that linearly operates along a rotational axis of the threaded actuator to define a plurality of actuator positions;
- an actuator arm extending between the carriage and a transmission interface, wherein linear operation of the carriage defines a rotational operation of the actuator arm about the transmission interface;
- a position sensor in communication with the selector interface, the actuator arm and a motor of the drive assembly to locate the carriage and the actuator arm at the plurality of actuator positions;
- and
- a transmission selector, wherein the linear operation of the carriage along the threaded actuator defines the plurality of actuator positions that correspond to respective gear positions of the transmission selector, wherein the position sensor includes a positioning magnet that operates relative to a magnet sensor in communication with the drive assembly, wherein the positioning magnet and the position sensor cooperate to selectively operate the motor of the drive assembly between a plurality of transmission settings, wherein the positioning magnet is attached to the actuator arm and the magnet sensor is attached to a printed circuit board.
A selector assembly comprising:
- a selector interface that selectively operates a drive assembly via a controller, the drive assembly including a threaded actuator;
- a carriage that translates along the threaded actuator to define a plurality of gear positions;
- a transmission selector that rotates about an interface axis;
- and
- a sensor assembly in communication with the controller and the carriage, wherein linear operation of the carriage defines a rotational operation of a magnet of the sensor assembly and the transmission selector about the interface axis, and wherein the sensor assembly cooperates with the drive assembly to locate the carriage and the transmission selector at a selected gear position of the plurality of gear positions.
Dependencies are inferred from the claim text.